Improved shaft-coupling



UNITED STATES PATENT OFFICE.

A. J. LANGWORTHY, 0F MILWAUKEE, WISCONSIN.

IMPROVED SHAFT-COUPLING.

Specification forming part of Letters Patent No. 90,757, dated' June 1,1869.

To all whom it mag/concern.-

Beit known that I, A. J. LANGWOETHY, of the city and county ofMilwaukee, and State of Wisconsin, have invented a new and usefulImprovement in Couplings; and I do hereby declare that the following isa full, clear, and exact description thereof, which will enable thoseskilled in the art to make and use the same,reference being had to theaecompanyiu g drawings, forming part of this specication, in which-Figure 1 is a sectional view of my invention, and Fig. 2 a side View.

Similar letters of reference iu each of the figures indicatecorresponding parts.

The object ot' my invention is to produce a coupling that shall be freefrom those dangerons excresences usual that shall be as safe as any partof the shaft to which they are attached, and yet be all that isrequired.

A is the outside shell, with four openings, one ot them for the end of ashaft to be firmly fixed in, and the one opposite longer for the end ofa shaft to pass through into the hall in the center; B, a ball whichoccupies the center of the shell A, with a square hole through it, withtwo trunnions, C C, which project out into the openings in the sides of'the shell A. The shell A is made of two pieces and bolted together.

This cou plingis used by puttingpcrmanently one end ot'a shaft into thehole in the projecting end ot' the shell, which has a square hole whichjust (its theshaft. The hole in the other end of' the shell A is muchlarger, through which is put the end of another shaft into the ball B(This hole, being larger than the end of the shaft, will giveconsiderable play, and the holes for the truunions C C being larger thanthe trunnions one way, so that the shaft can have play up and down andsidewise.

What 1 claim as my invention, anddesire to secure by Letters Patent, is

The coupling A B C, constructed substantially as described.

A. J. LANG WORTHY.

Witnesses:

J. B. SMITH, T. C. GURNEY.

